I think "scientific evidence" is about the lamest nomenclature possible. It is implying that there is some "evidence" laying about that proves or disproves everything... Reality is that studies with the ABO calculated in have given Dr. D - I would guess - probably the majority of information he has synthesized into something useful.

What lacks is studies. There is plenty of supporting "evidence" found in research journals, but no proof that Dr. D's claims are the answer to the issues.

People are becoming so stupid they should just die. They do not even understand their own language these days. They are inept to interpreting the world around them with words in such a way that should be considered credible. Put it to you this way, I fully support criticism of Dr. D if it is real criticism. I do very little supporting though because that type of criticism barely exists.

At one time i used to subscribe to the paleo diet science pioneers e.g. Dr. Loren Cordain and Dr. Weston A Price and while i'm still intrigued of their hunter gatherer diet studies however they haven't answered to my satisfaction about how genetic drift and epigentics plays a part in human diet as Dr. D has done alot of research into these fields to show how and why all humans today are not designed to eat the ''one size fits all'' diet that numerous so called diet experts are still are pushing currently.

At one time i used to subscribe to the paleo diet science pioneers e.g. Dr. Loren Cordain and Dr. Weston A Price and while i'm still intrigued of their hunter gatherer diet studies however they haven't answered to my satisfaction about how genetic drift and epigentics plays a part in human diet as Dr. D has done alot of research into these fields to show how and why all humans today are not designed to eat the ''one size fits all'' diet that numerous so called diet experts are still are pushing currently.

As an O, however, Tall Hunter, I would imagine you did fairly well on the Paleo Diet? I first learned about cutting out carbs and eating more protein from the Atkins Diet, many years ago. As an O myself, that had a profound impact on my ability to control my hypoglycemia, and for that I will be forever grateful for the Atkins Diet. The BTD and GTD were the natural next steps for me because I had already experienced the positive aspects of the Atkins Diet. Some are fortunate enough to find the BTD first. Others of us take a more circuitous route, like me.

A "paleo" diet would essentially be healthy for all people if all these blood types are millions of years old, as i strongly believe they are. The specific foods matter, but no person should consume cereal whole grains and dairy in substantial amounts. These are the top two food allergens in the world.

I like citrus fruits, but they seem to make my stomach feel acidic and give me a lot of mucus production. I used to drink OJ all the time! I read the top four food allergies worldwide are dairy, wheat/whole grain, nuts and some seeds, and citrus fruit.

As an O, however, Tall Hunter, I would imagine you did fairly well on the Paleo Diet? I first learned about cutting out carbs and eating more protein from the Atkins Diet, many years ago. As an O myself, that had a profound impact on my ability to control my hypoglycemia, and for that I will be forever grateful for the Atkins Diet. The BTD and GTD were the natural next steps for me because I had already experienced the positive aspects of the Atkins Diet. Some are fortunate enough to find the BTD first. Others of us take a more circuitous route, like me.

Yes sadly i've only discovered over the last year or two that i really seem to do well on a blood type-o/paleo high fat diet and so i was at first convinced that all humans should eat that way since we still carry copies of DNA from our 1.8 million years of being hunter gatherer's (homo hamblis, homo ergaster etc.) as like Cordain and others teach however whenever i read about all the testimonials on here from blood type - A's that thrive on a low red meat diet and high carbs along with knowing of the different geno type bodies and millions of thriving vegans that tells me that billions of humans over the thousands of generations have mutated genetically since the first agriculture days of the ancient sumerians along with Dr D's explanation about how and why our blood types changed in relation to our new enviromental stressors while we slowly populated the globe from our ''out of africa'' event some 75,000 years ago..

One thing that has always puzzled me is how those first agriculture peoples while discovering wheat and barley to survive and even thrive to create the first city states how they dealt with celiac as they must have had that disease before numerous future generations developed the genes to deal with it.

One thing that has always puzzled me is how those first agriculture peoples while discovering wheat and barley to survive and even thrive to create the first city states how they dealt with celiac as they must have had that disease before numerous future generations developed the genes to deal with it.

Early grain crops at that time were considerably different than wheat grown today.

If you consider the great apes, gorillas, bonobos, chimpanzees, and orang-utans, they possess the same four ABO antigens as humans as far as i have read. Chimps and bonobos are almost all A with small amounts of O, never B. Gorillas are almost all B with small amounts of O with no recorded A. Orang-utans are said to possess all four blood types found in humans. Considering we all hail from a commmon ape ancestor some 15 million years ago, i think these blood types are quite old. Every ape including humans ate nothing but plant foods, fruits, and meats. Plants, leaves, and fruits make up the majority of great ape diets, with some meaty foods here and there. Today, we see people, even on this website, of all blood types who are gluten or grain intolerant, dairy intolerant, etc. We have not fully evolved to accommodate these foods as well as our original diet of plants, fruits, flowers, and meats. I personally love red meat and eat it up to 5 times a week. But i feel very good after eating it.

Thats what i have got out of all this stuff!! There is no possible way to eat like our cousins with all the processed and instant foods we have that taste so good today though! It is also very sad to see the great apes endangered the way they are today. I think there is a lot to learn from them.

Lack of evidence is not evidence of lack. ...... Dr D. YOU are so right..

Understanding is a key.. the BTD/GENO books I own are mine, when I give one away, I replace it.. my shelf has room for more books.. keep them coming.. It is all the science I need.

Being here is invaluable, but not enough. We need ALL the Doctors. I needed them for a very small cancer spot-I could never feel!!! Please do your mammograms! Doing so saved me from cancer later on. I am grateful! Thanks for learning from my experience! I was lucky! I wish the same for YOU!

Fitnessaddict, this is her opinion. We do not know what she knows, which i am sure is more than either of us. I use GTD as a guideline, not as a Bible. Truth is that there is more variability within a blood type group than between blood groups. D'adamo's work shows this to be true.

She looks like she knows the truth, why would a nutritionists not read the book thats a bestseller? but the thing is she can't admit it. If she does, evreytime a client comes in, she should ask them whats ur blood type AND thats what they FEAR. They want the one size fits all because thats what they studied and thats the majority.. ITS all about money, without signing papers with Dr.D why would she admit and use the diet for her clients (BUSTED) lol

"BTD is not about losing weight, its about giving the body what it needs and what it needs only. Thus being a healthy beast"